EP2745024A1 - Klauenkupplung - Google Patents
KlauenkupplungInfo
- Publication number
- EP2745024A1 EP2745024A1 EP12759631.0A EP12759631A EP2745024A1 EP 2745024 A1 EP2745024 A1 EP 2745024A1 EP 12759631 A EP12759631 A EP 12759631A EP 2745024 A1 EP2745024 A1 EP 2745024A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- input
- output
- clutch
- hub
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
Definitions
- the invention relates to a claw-like connection or coupling, with the aid of which a first shaft can be coupled to a second shaft.
- the plate is bolted to the crankshaft, aligned the crankshaft relative to the clutch and then bolted or riveted the plate with the dual mass flywheel.
- the object of the invention is to show measures by means of which a detachable and virtually backlash-free coupling of a drive shaft of a motor vehicle with a transmission clutch is made possible.
- Motor vehicle engine with a downstream in the drive train assembly, in particular torsional vibration damper, torque converter or transmission clutch, provided with an input shaft connectable to the input shaft for introducing a torque and connectable to the downstream unit output hub for discharging the torque, wherein the input hub at least one input element for transmitting the torque in the circumferential direction on at least one output element of the output
- the coupling according to the invention is characterized by a locking body which is pressed or pressed between opposite flanks of the input and output elements to produce a play-free connection in the circumferential direction between the input hub and the output hub.
- the locking body is arranged between these opposite flanks of the input and output elements and presses against them.
- the blocking body exerts a force on these flanks, which keeps the input and output elements of the dog clutch in a play-free relationship to each other.
- the coupling according to the invention enables a play-free releasable crankshaft connection, with which a drive shaft can be coupled with a structural unit following in the moment flow, for example an input flange of a transmission. This should make it possible to construct a gearbox with a damper unit located in the wet room.
- the opposite flanks of the input and output elements form a gap or channel which tapers outwardly in the radial direction.
- the locking body may wedge radially outwardly between the flanks to remove almost all play between the input and output members from the clutch.
- the locking body is subjected to a centrifugal force urging it radially outwardly into the tapered gap or channel between the flanks so that the backlash-free connection solidifies with increasing speed.
- the blocking body is biased outwardly anyway in the radial direction, for example by means of a spring, so that the locking body between the opposite edges of the input and output elements is pressed.
- the opposite flanks of the input and output elements have flat surfaces, although curved surfaces are also conceivable. The opposite flanks are angled relative to each other at an acute angle to form the conically narrowing gap or channel, for example.
- the locking body has a circumferentially facing concave contour for abutment against the opposite flanks of the input and output elements.
- the concave contour of the locking body is substantially round, wherein the locking body has a spherical or cylindrical shape, such as a roller of a roller bearing.
- the contact area between the blocking body and the flanks of the input and output elements is kept low, For example, almost point or line contact, which in turn significantly easing or loosening the wedged play-free connection of the input hub and the output hub.
- the locking body is preferably made of a solid, durable and substantially low yielding material, such as steel.
- the input hub has a plurality of input elements, which are preferably distributed at regular intervals around the circumference of the input hub and each of which transmits the torque in the circumferential direction to a respective output element.
- a blocking body is provided between each adjacent pair of the input and output elements. In this way, the transmission of torque from the input hub to the output hub is distributed over a plurality of input and output elements about the circumference of the dog clutch.
- the at least one output element of the output hub lies in a respective recess of the input hub, the edge of the input element partially delimiting the recess.
- the output member extends at least partially radially outwardly into the recess.
- the input and output hubs may have a completely inverted configuration such that the at least one input member lies in a respective recess of the output hub, the edge of the output member delimiting the recess in part and the input member at least partially projecting radially outwardly into the recess ,
- the input and output elements have respective abutment surfaces which come in the circumferential direction by the action of the locking body in contact with each other for transmitting the torque.
- the flank of the input element against which the blocking body presses preferably on the outlet side of the input element with respect to the direction of rotation, i. the direction of torque transmission. In this way, the torque is not transmitted directly via the locking body from the input element to the respective output element.
- roller-like locking body By preferably roller-like locking body, it is possible the game of the input and output hubs - ie, the two claw halves of the clutch - to make almost free of play.
- This not only has the advantage that the connection does not tend to "rattle", but also that the tolerances of the individual input and output hubs, respectively Claw half to each other are not critical, since the locking body bridges the manufacturing tolerances by a radially guided path. This makes it possible to accept a larger tolerance difference.
- the gap in the tapered path of the locking body can be designed according to the possible spring forces.
- the bias spring elements are actuated when joining the engine and transmission - that is, pressed - and released by rolling over the seated on the roller-like locking body flanks.
- the prestressed spring forces then the roller-like locking body are pushed radially outwards and thus compensate for the different game between the two hubs or claws.
- the percentage share in the push (or train) increases to one hundred percent.
- the invention further relates to a coupling unit for transmitting torque from a drive shaft of an automotive engine to at least one transmission input shaft of a motor vehicle transmission with a transmission clutch, in particular dual clutch, and a dog clutch, which can be trained and further developed as described above, wherein the input hub of the dog clutch with the Drive shaft is connectable or integral with the drive shaft and the output hub of the dog clutch is connected to the transmission clutch or is made in one piece with an input flange of the transmission clutch.
- the input flange of the transmission clutch may in particular be connected to a counter plate for pressing a clutch disc between the counter plate and a pressure plate or form the counter plate itself as a one-piece component.
- the invention relates to a coupling unit for transmitting torque from a drive shaft of an automotive engine to at least one transmission input shaft of a motor vehicle transmission with a transmission clutch, in particular dual clutch, connected to the transmission clutch torsional vibration damper, in particular two-mass flywheel, and a jaw clutch, as described above and further developed can be, wherein the input hub of the dog clutch is connectable to the drive shaft or is integral with the drive shaft and the output hub of the dog clutch is connected to the torsional vibration damper or is made in one piece with an input flange of the torsional vibration damper.
- the input flange can form the primary mass of a dual-mass flywheel, which is rotatably coupled via a bow spring with a secondary mass in a rotatable manner for damping torsional vibrations.
- a simple and fast connection of the transmission clutch to the drive shaft can be achieved. This allows a simple coupling of the drive shaft of a motor vehicle with the transmission clutch.
- Figure 1 a schematic axial cross-sectional view of a dog clutch
- Figure 2 a schematic perspective sectional view of the locking body in the
- the dog clutch 1 shown in Figure 1 has an input hub 10 for introducing a torque, which is connectable to the crankshaft of an automotive engine (not shown).
- the input hub 10 includes a plurality of circumferentially spaced, axially projecting input members 12 for transmitting torque circumferentially.
- the input elements 12 are formed in this example as four curved segments at the end of the input hub or a claw half 10, between which a respective recess 13 is provided.
- the dog clutch 1 shown in Fig. 1 has an output hub 20 for discharging the torque over a corresponding number of output elements 22, which extend radially into the recesses 13 between the input members 12.
- the output hub 20 forms a second claw half of the clutch 1, which may be arranged or formed, for example, on an input flange of a dual-mass flywheel.
- a locking body 30 is in the form of a cylindrical roller between opposite flanks 14, 24 of the adjacent pairs of input and output elements 12, 22.
- These flanks 14, 24 of the respective input and output elements 12 , 22 form a respective gap or channel 32, which tapers in the radial direction to the outside.
- the substantially flat edge 14 of the input element 12 extends at a point angle to the substantially radially réelleckenden edge 24 of the output member 22, so that each locking body or roller 30 between these flanks 14, 24 under bias of a spring 34 in the radial direction wedged outwards and presses against the flanks 14, 24 and thus produces a play-free connection in the circumferential direction between the input and output hubs or jaw halves 10, 20.
- the input and output members 12, 22 have respective abutment surfaces 16, 26 which come into contact with one another by the action of the locking body 30 to transmit the torque.
- each locking body or each roller 30 is biased radially outwardly with a respective spring 34 which is mounted in a recess 36.
- each locking body 30, together with the spring-based bias 34 is preferably on the output side, i.e., on the output side. preferably in the flange of the dual mass flywheel, arranged.
- a (sheet) holder 37 is pressed for the rollers 30 on the side rockers 38 such that the radially outer ends 39 of the bracket 37 laterally detached from the rollers 30.
- the rollers 30 are released so that they can move under bias of the spring 34 radially outwardly into the respective channels 32.
- the relaxing spring 34 moves the cylindrical locking bodies 30, which can be formed, for example, as balls, in the tapered locking channels 32 in the radial direction outwards. This results in a substantially backlash-free locking, wherein the effect of the lock during operation by the force acting on the locking body 30 centrifugal force continues to increase.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081078 | 2011-08-17 | ||
| PCT/DE2012/000756 WO2013023636A1 (de) | 2011-08-17 | 2012-07-26 | Klauenkupplung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2745024A1 true EP2745024A1 (de) | 2014-06-25 |
| EP2745024B1 EP2745024B1 (de) | 2016-10-19 |
Family
ID=46875593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12759631.0A Not-in-force EP2745024B1 (de) | 2011-08-17 | 2012-07-26 | Klauenkupplung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2745024B1 (de) |
| DE (2) | DE112012003378A5 (de) |
| WO (1) | WO2013023636A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1547663A (fr) * | 1967-10-17 | 1968-11-29 | Perfectionnements aux embrayages à disque | |
| DE2062414A1 (de) * | 1970-12-18 | 1972-08-24 | Luk Lamellen & Kupplungsbau | Einrichtung zum Übertragen einer Drehbewegung |
| JP3341961B2 (ja) * | 1994-02-28 | 2002-11-05 | 株式会社ユニシアジェックス | 軸継手構造 |
| DE102006048653A1 (de) * | 2005-10-17 | 2007-05-10 | Borgwarner Inc., Auburn Hills | Kopplungseinrichtung zur Übertragung eines Drehmoments |
| US7534171B2 (en) * | 2006-05-30 | 2009-05-19 | Borgwarner Inc. | Spline connector |
| DE112007002835A5 (de) * | 2006-09-20 | 2009-09-03 | GIF Gesellschaft für Industrieforschung mbH | Antriebsstrang mit einer Hauptantriebswelle und Antriebsstrang für ein Kraftfahrzeug mit einer insbesondere aus einem Motorblock austretenden Antriebswelle |
| US7713131B2 (en) * | 2007-08-27 | 2010-05-11 | Gkn Driveline North America, Inc. | Drive assembly and sleeve assembly therefor |
-
2012
- 2012-07-26 EP EP12759631.0A patent/EP2745024B1/de not_active Not-in-force
- 2012-07-26 DE DE112012003378.7T patent/DE112012003378A5/de not_active Withdrawn
- 2012-07-26 DE DE102012213122A patent/DE102012213122A1/de not_active Withdrawn
- 2012-07-26 WO PCT/DE2012/000756 patent/WO2013023636A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013023636A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112012003378A5 (de) | 2014-04-30 |
| EP2745024B1 (de) | 2016-10-19 |
| DE102012213122A1 (de) | 2013-02-21 |
| WO2013023636A1 (de) | 2013-02-21 |
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